5. Christine complained formally when her course of study was cancelled. (made)
--> Christine __made a formal complaint__ when her course of study was cancelled.
6. 'I find all the advertisements on TV really irritating,' said John. (nerves)
--> 'All the advertisements on TV really __get on my nerves__,' said John.
7. Mark regretted selling his old motorbike. (wished)
--> Mark __wished he had not sold___ his old motorbike.